/*
 * Copyright (c) 2017,安徽皖通科技股份有限公司 All rights reserved.
 */

package com.wttech.dzzf.process;

/**
 * ThreadLocal测试
 *
 * @author MaShibo
 * @date 2017/12/21.
 */
public class SequenceNumber {

	private static ThreadLocal<Integer> seqNum = new ThreadLocal<Integer>() {
		@Override
		protected Integer initialValue() {
			return 0;
		}
	};

	public int getNextNum() {
		seqNum.set(seqNum.get() + 1);
		return seqNum.get();
	}

	public static void main(String[] args) {
		SequenceNumber sn = new SequenceNumber();

		TestClient t1 = new TestClient(sn);
		TestClient t2 = new TestClient(sn);
		TestClient t3 = new TestClient(sn);
		t1.start();
		t2.start();
		t3.start();
	}

	private static class TestClient extends Thread {
		private SequenceNumber sn;

		TestClient(SequenceNumber sn) {
			this.sn = sn;
		}

		@Override
		public void run() {
			for (int i = 0; i < 3; i++) {
				System.out.printf("thread[%s], sn[%s]\n", Thread.currentThread().getName(), sn.getNextNum());
			}
		}
	}
}
